<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./index.html">
    
</head>
<body>
    <div class="sy">
     <h1>用户登录</h1>
  <p>  用户名：</p> 
  <p><input type="text"></p>
  <p>密码：</p>
  <p><input type="password"></p>
  <button class="btn"><a href=""></a>登录</a></button>
    </div>
</body>
</html>
